<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <select name="" id="" class="province">
        <option value="">请选择省</option>
    </select>
    <select name="" id="" class="city">
        <option value="">请选择市</option>
    </select>
    <select name="" id="" class="area">
        <option value="">请选择区</option>
    </select>

    <script src=" ./lib/require.js" data-main="main"></script>
</body>

</html>